Fire-pot.



G. F. CODA.

FIRE POT.

APPLIGATION FILED MAR. 2a. 1908.

Patented Mar. 2, 1909.

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CHRISTOPHER F. CODA, OF DETROIT, MICHIGAN, ASSIGNOR 'lO Alt'l STOVE COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

FIRE-POT.

Application filed March 23, 1908.

Patented March 2, 1909.

Serial No. 423,9l2.

To all whom it may concern:

Be it known that I, Crims'rornmi F. Conn, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Fire- Pots, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates particularly to a tire port for stoves or furnaces of the slotted type wherein a plurality of flues or air passages extending vertically of the tire pot are provided to admit the air for supporting combustion within the interior, and the invention consists in the novel construction of a fire pot of this type; further, in the peculiar construction, arrangement and combination of the various parts; and, still further, in certain details of construction as will be more fully hereinafter set forth.

In the drawings,-l igure 1 is a vertical central section through a fire pot embodying my invention; and Fig. 2 is a sectional perspective view. A represents a fire pot, consisting primarily of an inclosing wall B forming the body, provided with an air chamber C at its upper end and with a plurality of circumterentially arranged vertically-extending air passages D leading from the bottom of the fire pot upwardly to and communicating with the air chamber, as plainly shown in Fig. 1. Preferably the exterior of the inclosing wall is provided with a series of longitudinally extending thickened portions or ribs E, and these ribs are made hollow so as to form the air passages described.

Any form of air chamber may be einployed at the top or the fire pot, but the preferred construction is as shown in Fig. 1, the walls of the chamber being formed by an annular laterally-extending integral flange F upon the upper end of the lire pot and a curved annular section G adapted to be seated upon the outer portion of the flange F and Within agroove H in the extreme top portion of the body section, as indicated.

I represents a suitable damper-controlled draft opening for the ring or air chamber, and J designates the usual apertured supporting ears at the bottom of the the pot.

As shown in Fig. 1, the vertically-extending fines open inwardly, as indicated at K, Within the mterior of the fire pot, and these lateral openings extend from the lower edge of the latter for a considerable distance upwerdly, terminating preferably at a point substantially midway between the top and bottom, leaving an imperiorate zone L about the upper portion-of the fire pot. The lateral openings, as well as the vertical lines, taper, gradually increasing in size from their upper ends to the lower so as to permit any ashes or other matter that may accumulate therein to be readily discharged.

The style of tire pot described is adapted for use in connection with a substantially closed gate, and in use the air supply is derived from the air chamber C. The air is first heated within the air chamber, and then passes downwardly through the fines within the interior of the tire pot through the lateral openings described. The parts are so proportioned that the air is fed circmn iterentially about the burning fuel only, the g ecu fuel being entirely above the lateral openings and surrounded by the imperioratc zone, which constitutes a coking sec-v tion for the unburned fuel. Before the latter works down into the slotted section of the lire pot it has become sutliciently coked to prevent the entry of particles within the slots, thus choking the air passages, and the consequent obstruction of the air supply is obviated.

ll hat I claim as my invention is,

1. A single-piece cast metal fire pot having a circumiierentially arranged series of vertical air lines or passages formed in its int-losing wall, each passage-extending vertically i'i om the lower to the upper portion of the wall and laterally, to permit the discharge of air within the fire pot, for substantially half its length from the bottom upward, the upper portion of the inner surface of the wall being imperi orate and forming a coking section for and entirely surrounding the green fuel.

2. A fire pot, provided with a series of vertical air passages formed in its inclosing wall, and having its inner fuel-contacting surface divided into an upper imperforate coking section, adapted to surround the green fuel, and a lower slotted section, the slots communicating with the vertical air pas ages.

A fire pot, comprising an inclosing wall, having an annular air chamber at its upper end and provided with a circumferentiai series of Vertical air passages extending erally throughout their length with the Ver- 10 from the lower edge of the fire pot to and tical air passages.

communicating with the air chamber the In testimony whereof I afiix my signature inner surface of the wall downwardly from in presence of two witnesses.

tine an Ciifinibfbl to heal the m ddle of the CHRISTOPHER F. CODA re pot being imperforate, forming a coking 1 section for and surrounding the green fuel, \"Vitnesses: and the remainder of said surface being I HARRY C. KENDALL, siotted the slots having communication lat- HENRY P. FRY. 

